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Finding the Fourth Proportional to 85,700.93, 118,212.15 and 53,814.47

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Solution

The fourth proportional to 85,700.93, 118,212.15 and 53,814.47 is: 74,229.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,700.93 : 118,212.15 = 53,814.47 : x
  2. Step 2: Convert to fraction form
    85,700.93/118,212.15 = 53,814.47/x
  3. Step 3: Cross multiply
    85,700.93x = 118,212.15 × 53,814.47
  4. Step 4: Simplify right side
    85,700.93x = 6,361,523,608.75
  5. Step 5: Solve for x
    x = 6,361,523,608.75/85,700.93
  6. Step 6: Final answer
    x = 74,229.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.